The MBIE Migration Data Explorer has the information (https://mbienz.shinyapps.io/migration_data_explorer/ ) back to 2010, albeit needs a bit of knowledge to use it. Specifically, arrival and departure data from Customs states Resident Visa for all residence class visas other than Australians (who are captured and listed separately), but for INZ application data, Permanent Resident Visa (PRV) applications are reported separately from other residence class visas as Returning Residence Visa in the application categories (this relates to the visa framework in the Immigration Act). This category also includes Variation of Travel Conditions applications, so requires some drilling to get PRV numbers.